Skip-car or hoist for blast-furnaces.



No. 768,208. PATBNTED AUG. 23, 1904.

S. W. VAUGHEN, J. B. MCOLURE & A. J. BOYNTON.

SKIP GAR OR HOIST FOR BLAST FURNACES.

' v APPLIOATIOK FILED APR. 7, 1903.

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- s. W. VAUGHEN, J. B. Mc'GLURE & A. J. BOYNTON.

SKIP GAR 0R HOIST FOR BLAST FURNACES.

. APPLEEOATION FILED APR. 7, 1903.

170 MODEL.

PATENTED AUG. 23, 1904.

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APPLICATION FILED APR. 7,1903.

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P-ATENTED AUG. 23, 1904.

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UNITED STAT S Patented August 23, 1904.

PATENT, OFFICE.

.' SAMUEL VAUGHEN AND JAMES B. MOOLURE, OF LORAIN, AND ARTHUR J. BOYNTON, OF ELYRIA, OHIO.

SKlP-CAR OR HOIST FOR BLAST-FURNACES.

SIEEGIFIGAIION- forming part of Letters Patent No. 768,208 dated. August 23, 1904.

i Applicatibn filed April.7,1903. Serial No. 151,506- (No model.) I

To all whom/it may concern.-

, Beit known that we, SAMUEL W..VAUGHEN and JAMEs B. MCCLURE, of Lorain, and AR7 THUR J. BOYNTON, of Elyria, in the county of Lorain and State of Ohio, have invented a newand useful Improvement'in Skip-Oars or Hoists for Blast-Furnaces, of which the following is a full, clear, and exact descrip- -'tion, reference being had to the accompanying drawings, which form a part of this specification.

In our application Serial No. 151,505, of even-date herewith, we have described and claimed blast-furnace top and charging decar.

vices designed to secure a more even dis tribution of stock in the furnace, and in combination therewith we have described and claimed, broadly, a bottom-discharging skip a skip-car of the character broadly claimed in such combination. As we have pointed out in the said application, it has been generally the custom heretofore to employ a skip-car arranged to be tipped to discharge its contents at one side into the receiving-hopper at the top ofthe furnace, and ,we have shown that this has been one of the causes leading to an uneven distribution of stock in the furnace, since whenthe-car is dumped the thrust given the stock throws itover to the forward or farther side of the hopper, especially the coarser portions thereof, so that not only is more'stock delivered at oneside of the furnace than the other, but the coarser and finer portions of the stock are not uniformly admixed. -Our present invention is designed to I obviatei this result by providing a skip-car having a central bottom discharge arranged.

to drop the material centrally into the receiving-hopper of "the furnace and in uniform re lation to the\ central vertical axis of such hopper. To this end we; provide a can consi'stingofa suitable truck adapted" to travel upon the vusual inclined skip-tracks leading :to the furnace top and a stoekreceptacle hung. on-trunnio'ns on th e said truck, so as to always maintain'itsvertical position. Inthef bottom of this receptacle is a centrally-open- .valveifloltjlgdiaphragm; and means are pro- This application relates specifically to vided whereby when said receptacle is centr'ally over the receiving-hopperof the furnace said valve may be opened to discharge the contentsof the receptacle into said hopskip-car bucket may itself receive its load from the stock-collecting car or lorry by a vertical bottom discharge'from the latter, so that the stock is deposited uniformly and evenly in said bucket.

Our invention-also consists in the novel construction, combination, and arrangement claims, reference being had to the accompanying drawings, in.which--';

Figure l is a side elevation showing our improved skip-car as in use, the top portion of the furnace being shown in vertical section.

upon its inclined track. Fig. .3 'is a plan view showing the centrally-openingvalve and the means for actuating the. same, the car-- bucket being cut away on the line'3 30f Fig. 1. Fig. 4 is a plan view of the valve partially opened, and'Fig. 5is a side elevation of the lower portion of the skip-track with the car ment of the skip-car track andsl'rip-car. The letter A designates the usual inclined track running tothe top of the furnace and having, as usual, two pairs of rails of diiferent'gage.

B is the truck of the skip-car, consisting of -a suitable triangular frame carried by the Wheels and axles B" will always maintain its vertical position.

"D is the centrally-opening valvewhich closes the discharge-orifice in' the bottom of ,thecontracted or funnel-shaped lower por;

{of the character described andclairned in out "said application Serial No. 151,505.,consist- 'ing of a circulaudiaphragmdivided' on curved, radial lines into a: number of SQClJIODS D,

per. We also provide means whereby the" of parts, all substantially as hereina er described, and-pointed out in the appended Fig. 2 is an end elevation of the car standing 1 thereon in position to receive its load. Fig. 6 is an elevation showing a mod fied arrange- O is the bucket, having trunnions c, which hang in bearings 0' in the upper outer corner portions of the frame, whereby the buckettion'of the bucket. This valve is preferably each of which is pivoted at d at a point near the outer circumference of the diaphragm.

The convex edge (2 of each section is formed seen that the discharge-opening thus formed great importance.

central vertical axis and is not is symmetrical with respect to the vertical axis of the bucket and that as the several sections are moved outwardly the diameter of this opening increases equally in all directions from such axis. This feature is one of since it causes the stock to true vertical direction. The term centrally opening as used herein and in the appended claims is to be construed as meaning a valve having this mode of operation as distinguished from those valves composed of hinged or laterally-sliding levers, the opening formed by-which simply widens in one direction. Such valves do not meet be discharged in a the purpose of our invention, since they either give athrust to the material being discharged whichthrows it to one side or the other or else they discharge more of the material along the line of the-long axis of their opening. \Ve do not, however, wish to limit ourselves herein to the particular valve shown and described, as modified forms thereof may be employed.

For the purpose of operating the annulus D it is formed with a pin or projection d", which when the car reaches its discharging position at the.' top of the furnace enters a slotted jaw or lug a of an endwise-movable bar E. This bar is connected to any suitable openingdcvice, such as the motive cylinder E.

F designates stops or buffers for stopping the car centrally over the receiving-hopper (i of the furnace.

H designates the main bell of the furnace; H, a smaller bell onto which the stock falls from the throat of the hopper Gr, and H is a collecting-hopper surrounding the bell H, as .more fully described and claimed in our said application.

It is important that the ski p-car bucket shall v receive its load in substantially the same manner as the receiving-hopper of the furnace,

since if the stock is loaded into this bucket by a side dump the column ofstock therein is not uniformly distributed with respect to its uniformly discharged therefrom. We therefore preferably provide means, as shown in Fig. 5, whereinto the bucket of by the skip-car stock-collecting car or lorry having a central bottom discharge. To this end the skip-track rails at their lower ends are bent hoi "zontally outward, as shown at A" A This permits the skip-car to be run closely in under the stock-collecting car or lorry P, which is mounted on the truck P, running on the track P This car or lorry has a central bottom discharge which will deliver the stock centrally the skip-car. Said stock car or lorry is more fully described and forms the subject-matter of the claims in our pending application Serial No. 151,507, of even date herewith.

When the means shown in Fig. 5 are employed, it is necessary to modify somewhat the construction of the skip-car and of its track. The upper trucks B of the car must be of wider gage than the lower truck, and the outer rails of the track instead of the innr ones must be carried horizontally over the top of the furnace, as shown at A in Fig. 6, the inner rails, upon which the lower trucks travel, being cut off or stopped at the point A.

Having thus described our invention, what we claim as new, and desire to secure by Let ters Patent, is-

1. Theherein-described skip-car, consisting of a Wheeled supporting frame or truck, and a bucket hung on trunnions on said frame or truck and haying a centrally-opening discharge-valve at its bottom.

2. In a skip-car, the combination with the pivoted bucket having the discharge-orifice in its bottom, of the centrally-opening valve or diaphragm which controls the said orifice.

3. Ina ski p-car, the combination with the bucket having the centrallyopening valve consisting of the pivoted sections, and the circularly-movable annulus to which said sections are connected, of the sliding bar on the furnace-top arranged to engage said annulus, and means for operating the said bar.

t. The combination with the skip-car having its bucket hung on trunnions and provided with a bottom discharge, of the inclined track having its lower portions extended horizontally outward underneath the adjacent track for a stock-collecting car or lorry.

In testimony whereof we have aliixed our signatures "in presence of. two witnesses.

SAMUEL W. VAUGHEN. JAMES B. MCGLURE. ARTHUR J. BOYNTON.

Witnesses:

WILLIAM JAMES 'lAsMAN. ROB RT J. AsPIN.

may be run underneath a 6 

